My Krell can definitely drive this puny transformer box that Biggy sent along with me. Roughly at 50% volume at loud levels and much quieter than I'd expected.
I disagree. He's using a acoustical bandpass in the crossover, that if implemened electrically would require insanely huge components for one, hence the reason to do it in DSP. A two way, yes very doable. Three way, I dunno.